Theres no limit to the amount of good places, provided you're at the right time and right angle
Cliche pose spots: arch, rose garden, rock garden (beside faculty hollow), 3rd floor balcony, in front of etb (although that place looks a lot shabbier now), the big trees of jhe/bsb lawn, sterling street entrance, iahs/itb 'park', cootes, hamilton aviary, a lot of random spots around westdale, 12 acre field (? behind track/football field), musc garden (inside atrium)... uhh thats all ive got